Lister attachment.



No. 788,531. 7 PATENTED MAY 2, 1905.

J. A. HBRRON. LISTER ATTACHMENT.

APELIOATION FILED MAY 14. 1904.

wm c we a NITED STATES Patented May 2, 1905.,

PATENT OFFICE.

LISTER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 788,531, dated May 2. 1905.

Application filed May 14, 1904. Serial No. 207,984.

To all 1077107702115 ntmy concern.-

Be it known that I, JAMES ADDIsoN HER- RON, a citizen of the United States, residing at Eskridge, in the county of Wabaunsee and State of Kansas, have invented a new anduseful Lister Attachment, of which the following is a specification.

The invention relates to improvements in lister attachments.

The object of the present invention is to provide for lister-plows a subsoiler and a cut ter designed to be arranged in rear of the plow of the lister and capable of operating effectively in all kinds of soils.

A further object of the invention is to pr0- vide a simple and comparatively inexpensive device of this character which will not choke up in loose soil and which will be capable of cutting through roots and preventing the subsoiler from becomingclogged.

Another object of the invention is to provide a rotary cutter capable of adjustment with relation to the subsoiler and adapted to form a guard to prevent the subsoiler from hitting rocks andother obstructions.

WVith these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion, size, and minor details of construction within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a side elevation of a portion of a lister-plow provided with an attachment constructed in accordance with this invention. Fig. 2 is a perspective view of the attachment. Fig. 3 is a horizontal sectional view of the same. Fig. 4 is a detail view on the line 4 4 of Fig. 3. Fig. 5 is a similar view on the line 5 5 of Fig. 3.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

1 designates a subsoiler consisting of an approximately horizontally disposed trian- 3. The reduced lower end of the standard extends through a perforation of the blade and is headed at the lower face of the same, as clearly illustrated in Fig. 5 of the drawings. -The subsoiler may, however, be secured to the lower end of the standard in any other desired manner.

The standard, which is composed of an upper shank portion 4 and a lower substantially L-shaped portion, is adapted to be arranged in the recess or opening usually provided in listers for the reception of the stand ard of the subsoiler, the subsoiler and the cutter 5 being designed to run in rear of the plow of the lister and to operate in the ordinary manner between the said plow and the roller. The lower L-shaped portion extends rearward from the lower end of the upper shank portion 4 and is composed of a horizontal arm and a vertical arm or portion. The horizontal arm projects rearward from the upper shank portion 4, and the vertical arm or portion depends from the horizontal arm, which constitutes the intermediate portion of the standard.

The rotary cutter 5, which is provided at opposite sides with central hub portions 6, is supported by a pair of curved hanger-bars 7, extending downward and rearward from the angle formed by the shank and the horizontal arm of the standard and pivoted to the same by a transversebolt 8. The transverse bolt 8 pierces the front ends of the supporting-bars 7 and the standard, and it permits the bars to swing upward and downward, whereby the rotary cutter is adjusted with relation to the subsoiler. The rotary cutter is located within the lower angle or space formed by the intermediate horizontal portion of the standard and the lower upright portion of the same, and the curved bars, which are provided at their rear portions with perforations 9, are adjustably secured to the rear vertical portion of the standard by a bolt 10. The rear vertical portion of the standard is provided at intervals with perforations 11 for the reception of the bolt 10, and by adjusting the rear portions of the hanger or supporting bars 7 the rotary cutter is raised and lowered and moved backward and forward. By this construction the rotary cutter, which is arranged over the subsoiler, is adjustable along the median line of the latter to a point in rear of the front end of the subsoiler.

The rotary cutter will not clog in loose, wet, dry, or any other soil, and it is adjustable in the arc of a circle and adapted to be set forward and lowered, as illustrated in dotted lines in Fig. 1 of the drawings, so as to prevent the subsoiler from striking rocks, and it will ride over the same, whereby both the cutter and the subsoiler will be prevented from being injured by the same.

The device is adapted to reduce the draft of the lister-plow, it lessens the labor of workthe same, and it does not have to be cleaned by hand, as it is absolutely selfcleaning.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Alister attachment, comprising a standard, a substantially horizontal triangular subsoiler carried by the standard, and a rotary cutter supported by the same standard and arranged over the subsoiler and adjustable toward and from the point of the latter along the median line of the subsoiler.

2. A lister attachment, comprising a subsoiler, a rotary cutter arranged over the subsoiler, and a hanger carrying the rotary cutter, said hanger being pivotally mounted at one end and adjustably secured at the other end and adapted to move the cutter in an arc of a circle along the median line of the subsoiler toward and from the point of the same.

3. Alister attachment, comprising a stand ard, a substantially horizontal subsoiler, a rotary cutter arranged over the same, and a hanger carrying the cutter at an intermediate point, pivoted at the front and adjustably connected to the standard at the rear to carry the rotary cutter toward and from the front of the subsoiler.

4. Alister attachment, comprising a standard, a subsoiler secured to the same, a rotary cutter located above the subsoiler at the front thereof, and a hanger consisting of a bar carrying the rotary cutter at a point between its ends and pivoted at one end to the standard and having its other end adjustably connected with the same, substantially as described.

5. The combination of a standard having an upper front portion and provided with a lower rear portion, a subsoiler carried by the standard, bars pivotally connected at their front ends to the front portion of the standard at opposite sides thereof and receiving the rear portion of the standard between their rear ends, and a rotary cutter mounted between the said bars, substantially as described.

6. The combination of a standard, comprising an upper shank, and a lower rearwardly-extending approximately L-shaped portion, a subsoiler, a pair of hanger-bars pivotally connected with the shank and adjustably secured to the rear of the L-shaped portion, and a rotary cutter located above the subsoiler at the front thereof and mounted between the said bars, substantially as 7 described.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

JAMES ADDISON HERRON.

Witnesses:

FRANK DILL, J. R. MORELA D. 

